Blade of Prophecy

This is a Crusader sword, as it turns Condemn ability into a massive weapon of destruction, lethal against crowds of enemies, especially the elites. Only the initial blast triggers more explosions, though, not the secondary blasts. The secondary explosions do not benefit from any runes (but use the same damage type as the original spell), and are unleashed with a very brief delay. Note that only two enemies can trigger it per cast (if only one enemy is hit, they release a single blast).